a few sandwiches short of a picnic

a few sandwiches short of a picnic

A pejorative phrase meaning not very intelligent or of questionable mental capacity. It can appear in many different forms and variations (for example: a few bricks shy of a load, a few cards shy of a full deck, etc.). He says he's going to start a business selling bees as pets. I think he may be a few sandwiches short of a picnic.
See also: few, of, picnic, sandwich, short
Farlex Dictionary of Idioms.
See also:
  • a few bricks short of a (full) load
  • a few bricks shy/short of a load
  • a few, two, etc. bricks short of a load
  • a sandwich short of a picnic
  • few bricks short of a load
  • one brick shy of a (full) load
  • one brick shy of a load
  • one sandwich short of a picnic
  • picnic
  • sandwich